QAR Questair Tech

RNS Number:3256C
QuestAir Technologies Inc
03 May 2006

For Immediate Release                                             3 May, 2006

  ExxonMobil And QuestAir Technologies Address Increased Hydrogen Needs In The
                               Refining Industry

FAIRFAX, Virginia and BURNABY, B.C. - ExxonMobil Research and Engineering
Company ("EMRE") and QuestAir Technologies Inc. (AIM: QAR; TSX: QAR) announced
today that they have signed an agreement to jointly market a novel, large
capacity hydrogen purifier as a compact solution for hydrogen recovery in the
oil refining industry.

QuestAir has been working with EMRE since 2003 to develop this advanced, rapid
cycle pressure swing adsorption ("RCPSA") system, marketed as the H-6200, for
use in oil refineries and petrochemical plants. A prototype plant test is
planned at an ExxonMobil refinery beginning the second half of 2006.

Jonathan Wilkinson, President and CEO of QuestAir said, "This marketing
agreement is a significant milestone in the commercialization of the advanced
hydrogen purifier that QuestAir is developing in collaboration with EMRE. We
expect to begin jointly marketing this product to refineries immediately."

The multi-year agreement signed today covers the marketing of the H-6200
hydrogen RCPSA to third party customers in the oil refining industry. Under the
terms of the agreement, EMRE will lead the marketing effort to refinery
customers. QuestAir will support EMRE's marketing efforts, and will be the
contracting party responsible for manufacturing, supplying and commissioning of
plants sold to refinery customers.

The commercial gain from the sale of the product will be shared between QuestAir
and EMRE based on the contributions made by each party towards the research,
development and commercialization of the product.

About the H-6200

The H-6200 hydrogen purifier incorporates QuestAir's proprietary Rapid-Cycle
Pressure Swing Adsorption ("RCPSA") technology, which operates at significantly
higher cycle speeds than conventional PSA systems. This results in a direct
reduction in the size and cost of the equipment required to purify a given
volume of product gas. The H-6200 will be marketed in the oil refining industry
as a compact solution for hydrogen recovery, helping refineries address the
growing demand for hydrogen to process increased supplies of heavy, sour crude
oil.

About ExxonMobil Research and Engineering Company

EMRE is the downstream research and engineering arm of Exxon Mobil Corporation
(NYSE: XOM-News), a leading global oil, natural gas, and petrochemicals company
whose subsidiaries have operations in nearly 200 countries and territories.
Additional information regarding ExxonMobil and technologies it licenses can be
found at http://www.exxonmobil.com/refiningtechnologies.

About QuestAir Technologies Inc.

QuestAir Technologies, Inc. is a developer and supplier of proprietary gas
purification systems for several large international markets, including existing
markets such as oil refining, biogas production and natural gas processing, and
emerging markets such as fuel cell power plants and fuel cell vehicle refuelling
stations. The Company has joint development agreements with ExxonMobil Research
and Engineering Company and Shell Hydrogen, and a collaboration with FuelCell
Energy. QuestAir is based in Burnaby, British Columbia and its shares trade on
the AIM Market of the London Stock Exchange Plc. and on the Toronto Stock
Exchange under the symbol "QAR".

Forward Looking Statements

Certain statements in this press release may constitute ''forward-looking''
statements which involve known and unknown risks, uncertainties and other
factors which may cause the actual results, performance or achievements of the
Company, or industry results, to be materially different from any future
results, performance or achievements expressed or implied by such
forward-looking statements. When used in this press release, such statements use
such words as "anticipate", "believe", "plan", "estimate", "expect", "intend",
''may'', ''will'' and other similar terminology. These statements reflect
current expectations regarding future events and operating performance and speak
only as of the date of this press release. Forward-looking statements involve
significant risks and uncertainties, should not be read as guarantees of future
performance or results, and will not necessarily be accurate indications of
whether or not such results will be achieved. A number of factors could cause
actual results to differ materially from the results discussed in the
forward-looking statements.

Contact Information:

ExxonMobil News Media Desk
(703) 846-4467

QuestAir Technologies Inc.
Andrew Hall
Director, Corporate Development and External Communications
Phone: (001) 604-453-6967
Email: hall@questairinc.com
Web: www.questairinc.com

UK media contact:                         Canadian media contact:
Charles Ryland                            Terry Foster
Ben Willey                                James Hoggan & Associates
Buchanan Communications                   Phone: (001) 604-739-7500
Phone: 020 7466 5000



                      This information is provided by RNS
            The company news service from the London Stock Exchange

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